Information Systems Security Engineer; ISSE

Job Title: Information Systems Security Engineer (ISSE)

Location: Linthicum, MD

Required Clearance: TS/SCI w/ CI Poly

Salary: Negotiable

We are seeking a highly skilled Information Systems Security Engineer (ISSE) to support cybersecurity assessments and Risk Management Framework (RMF) evaluations for both classified and unclassified networks. The ideal candidate will have a strong background in network security, cryptography, and cloud computing and possess the ability to conduct in-depth security reviews, develop countermeasures, and create technical security documentation.

• Conduct manual reviews of network diagrams, configurations, and VPN termination points to identify security risks.
• Assess network device configurations and software TLS security to ensure compliance with security standards. Perform flexible RMF reviews tailored to unique operational needs, prescribing countermeasures for secure communications.
• Apply various security standards and frameworks (e.g., NIST, CNSSI, DoD cybersecurity guidelines) to enhance system security.
• Develop Security Assessment Reports (SARs), technical documents, and risk analyses for senior leadership.
• Provide technical guidance on encryption, network security architectures, and secure cloud computing environments.
• Conduct ad hoc technical and administrative cybersecurity tasks as required.
• Collaborate with cross-functional teams to ensure security best practices are integrated into system designs.
• Exhibit leadership qualities by mentoring junior team members and contributing to security strategy discussions.

• Extensive experience in network security, cryptography, and cloud security.
• Strong understanding of VPN configurations, TLS security, and secure communication protocols.
• Proficiency in RMF assessments and the ability to tailor security evaluations to mission needs.
• Familiarity with applying various cybersecurity frameworks and compliance standards.
• Excellent technical writing skills for creating security assessment reports and documentation.
• Strong analytical and problem-solving abilities to identify vulnerabilities and recommend solutions.

• CISSP, CEH, or other relevant security certifications.
• Experience with zero-trust architectures, cloud security frameworks, and modern cryptographic solutions.
• Prior work supporting DoD, intelligence community, or federal government cybersecurity initiatives.